Results 61 to 70 of about 106,104 (288)

Heterogeneity in polyamine metabolism dictates prognosis and immune checkpoint blockade response in hepatocellular carcinoma

Frontiers in Immunology
Immune checkpoint blockade holds promise in hepatocellular carcinoma (HCC) treatment, but its efficacy remains limited. Dysregulated polyamine metabolism and its interaction with oncogenic pathways promote tumor progression. However, the heterogeneity of
Jianyan Pan, Zhong Lin, Qinchun Pan, Tao Zhu   +3 more
doaj   +1 more source

Differences in Polyamine Metabolism between Carcinomatous and Uninvolved Human Breast Tissues

The International Journal of Biological Markers, 1986
The polyamine biosynthetic enzymes ODC and SAMDC show higher activity in carcinomatous human breast tissue than in uninvolved tissue of the same breast; the interconversion enzyme PAO shows significantly lower activity in carcinomatous than uninvolved ...
Marta Romano, Maria Assunta Santacroce, Patrizia Bonelli, Luigi Cecco, Maria Cerra   +4 more
doaj   +1 more source

Difluoromethylornithine (DFMO) and AMXT 1501 inhibit capsule biosynthesis in pneumococci

Scientific Reports, 2022
Polyamines are small cationic molecules that have been linked to various cellular processes including replication, translation, stress response and recently, capsule regulation in Streptococcus pneumoniae (Spn, pneumococcus).
Moses B. Ayoola, Leslie A. Shack, Jung Hwa Lee, Juhyeon Lim, Hyungjin Eoh, Edwin Swiatlo, Otto Phanstiel, Bindu Nanduri   +7 more
doaj   +1 more source

Polyamine Transport Assay Using Reconstituted Yeast Membranes

Bio-Protocol, 2021
ATP13A2/PARK9 is a late endo-/lysosomal P5B transport ATPase that is associated with several neurodegenerative disorders. We recently characterized ATP13A2 as a lysosomal polyamine exporter, which sheds light on the molecular identity of the unknown ...
Sarah Veen, Shaun Martin, Marleen Schuermans, Peter Vangheluwe   +3 more
doaj   +1 more source

Aspirin and glyceryl trinitrate effects on polyamine uptake and smooth muscle cell growth [PDF]

, 2004
This paper looks at aspirin and glyceryl trinitrate effects on polyamine uptake and smooth muscle cell ...
Clarke, Brendan, Grant, M.H., Kelso, K., Wallace, H.M., Winn, P.L.   +4 more
core  

Substantially Altered Local and Systemic Immunity in Ischemia‐Free Versus Conventional Liver Transplantation

Advanced Science, EarlyView.
This study investigates how ischemia‐free liver transplantation (IFLT) shapes both local and systemic immune responses compared with conventional liver transplantation (CLT). Our findings demonstrate that IFLT confers significant immunological protection by attenuating the STAT3‐HIF‐1α axis and enhancing the Heme‐HMOX1 pathway, two regulatory networks ...
Tao Luo, Shuai He, Shirui Chen, Dongmei Ye, Shibo Zhang, Di Liu, Dawei Zou, Linhe Wang, Huadi Chen, Jinghong Xu, Huanjie Liu, Ruiting Liu, Xi Tan, Yitong Wang, Jiayi Zeng, Runbing Mo, Yuexin Li, Yuyi Zhang, Tanyiyang Ruan, Tielong Wang, Zehua Jia, Yu Jia, Tongdi Fang, Yimou Lin, Xiaorui Liu, Yunhua Tang, Maogen Chen, Qiang Zhao, Anbin Hu, Weiqiang Ju, Yi Ma, Dongping Wang, Xiaofeng Zhu, Schlegel Andrea, Yuan Zhai, Kwan Man, Tullius G. Stefan, Yifang Gao, Jinxin Bei, Xiaoshun He, Zhiyong Guo   +40 more
wiley   +1 more source

Sabotaged Integral HSC Heterogeneity Underlies Essential Thrombocythemia Development

Advanced Science, EarlyView.
Single‐cell RNA sequencing (scRNA‐seq) maps how distinct driver mutations remodel hematopoietic stem cell (HSC) programs across essential thrombocythemia (ET). Comparative analysis uncovers both shared and subtype‐specific molecular signatures, identifies a triple‐negative (TN)‐associated HSC population enriched with malignant traits, and reveals the ...
Jingyuan Tong, Di Wang, Haoze Song, Ting Sun, Yanhong Zhao, Wenjing Gu, Lexuan Lin, Yitong Zhao, Yipeng Liang, Xu Jin, Rongfeng Fu, Mankai Ju, Jie Gao, Jinfa Ma, Chengjie Gao, Anqi Zhang, Zhijian Xiao, Erlie Jiang, Renchi Yang, Shihui Ma, Lei Zhang, Lihong Shi   +21 more
wiley   +1 more source

Searching for Drug Synergy Against Cancer Through Polyamine Metabolism Impairment: Insight Into the Metabolic Effect of Indomethacin on Lung Cancer Cells

Frontiers in Pharmacology, 2020
Non-small cell lung cancer (NSCLC) is the most lethal and prevalent type of lung cancer. In almost all types of cancer, the levels of polyamines (putrescine, spermidine, and spermine) are increased, playing a pivotal role in tumor proliferation ...
Freddy López-Contreras, Freddy López-Contreras, Matías Muñoz-Uribe, Jorge Pérez-Laines, Laura Ascencio-Leal, Andrés Rivera-Dictter, Antonia Martin-Martin, Rafael A. Burgos, Pablo Alarcon, Rodrigo López-Muñoz   +9 more
doaj   +1 more source

Polyamine biosynthesis is critical for growth and differentiation of the pancreas [PDF]

, 2015
The pancreas, in most studied vertebrates, is a compound organ with both exocrine and endocrine functions. The exocrine compartment makes and secretes digestive enzymes, while the endocrine compartment, organized into islets of Langerhans, produces ...
Anderson, Ryan M., Mastracci, Teresa L., Mirmira, Raghavendra G., Robertson, Morgan A.   +3 more
core   +1 more source

2‐line Ferrihydrite Enhance Microbial Synthesis of Plant Biostimulants in Composted Biosolid by Regulating Phyla Pseudomonadota and Actinomycetota

Advanced Science, EarlyView.
This study explores how iron and manganese oxides transform sewage sludge into plant biostimulants during composting. Non‐targeted identification reveals the main species of plant biostimulants. Metagenomic analysis reveals that 2‐line ferrihydrite specifically enriches microbial genes for biosynthesis, boosting plant‐growth promoters.
Yu Zhang, Ziwei Zhang, Zexu Chen, Boyuan Yang, Siying Cai, Jun Chen, Jianhua Guo, Weijun Zhang   +7 more
wiley   +1 more source